Yamaha F250 User Manual

Maintenance
100
Twin engines
EMU29372
Disconnecting the battery
1. Turn off the battery cut-off switch (if
equipped) and main switch. NOTICE: If
they are left on, the electrical system
can be damaged.
[ECM01931]
2. Disconnect the negative cable(s) from
the negative (-) terminal. NOTICE: Al-
ways disconnect all negative (-) ca-
bles first to avoid a short circuit and
damage to the electrical system.
[ECM01941]
3. Disconnect the positive cable(s) and re-
move the battery from the boat.
4. Clean, maintain, and store the battery
according to the manufacturer’s instruc-
tions.
EMU38661
Storing the battery
When storing your Yamaha outboard motor
for prolonged periods of time (2 months or
longer), remove the battery and store it in a
cool, dry place.
Check the battery and charge it if necessary.
1. Starboard side engine
2. Port side engine
3. Red cable
4. Black cable
5. Isolator leads with circuit protection
6. Fuse
7. Battery for starting
8. Battery for accessories
9. Negative connecting cable
ZMU05941
1
3
9
34
6
4
2
5
7 8 7
6CE-9-36-1E0.book 100 ページ ２０１４年１１月２８日 金曜日 午後２時５５分
©2019 Yamaha Motor Corporation, U.S.A.

Yamaha F250 Specifications

General

Prop Shaft Horsepower	250 hp
Full Throttle RPM Range	5000 - 6000 rpm
Gear Ratio	1.75:1
Starting System	Electric
Displacement	4169cc
Bore x Stroke	96 x 96 mm
Fuel Induction System	EFI (Electronic Fuel Injection)
Ignition System	TCI (Transistor Controlled Ignition)
Alternator Output	50 amps
Steering	Remote
Shaft Length	25 in
Weight	253 kg (557 lbs) - F250XCA
Recommended Fuel	Regular Unleaded (Minimum Octane 87)